Invalid Data Error When Uploading JSON

[hinducows]

I am attempting to upload a .json file into Designer and am getting the error "Invalid data provied" [sic] (see screenshot). I've made quite a few modifications to the tokens in the PrimeOne 3.1.0 UI kit, but nothing that should seemingly cause the error. I've also made a "custom" set for all additional customization tokens.

Is there some way to get a more verbose error log so that I can figure out what token(s) is causing my issue? I really don't want to have to do a diff and comb through thousands of lines of json files... 😕

Thanks in advance for any and all help!